Unit E - Circuits and Electricity Flashcards
What is a Closed Circuit?
A closed circuit is a complete electrical loop that allows current to flow.
Define Coulomb’s Law.
Coulomb’s Law describes the electrostatic force between two charged objects.
What is an Electric Circuit?
An electric circuit is a path that allows electric charges to flow.
What is Electric Current?
Electric current is the flow of electric charge, measured in amperes.
What is an Electron?
An electron is a subatomic particle with a negative charge.
Define Electrostatic Force (Coulomb’s Force).
Electrostatic force is the force between charged objects due to their electric fields.
What does the term Force mean in physics?
Force is an interaction that causes an object to change its velocity.
What is Induction in the context of electromagnetism?
Induction is the process of generating electric current from a changing magnetic field.
Define Magnetic Field.
A magnetic field is an area around a magnet where magnetic forces can be detected.
What is Ohm’s Law?
Ohm’s Law states that the current through a conductor is directly proportional to the voltage across it.
What is an Open Circuit?
An open circuit is a broken electrical loop that prevents current from flowing.
What is Resistance?
Resistance is the opposition to the flow of electric current, measured in ohms.
What is a Resistor?
A resistor is a component that limits the flow of electric current in a circuit.
What is the function of a Switch in an electrical circuit?
A switch is a device that can open or close an electric circuit.
Define Voltage.
Voltage is the electric potential difference between two points in a circuit.
What is a Solenoid?
A solenoid is a coil of wire that generates a magnetic field when electric current passes through it.
What does Faraday’s Law of Induction state?
Faraday’s Law states that a change in magnetic field within a loop induces an electromotive force (EMF) in the loop.
What is the Right Hand Rule?
The Right Hand Rule is a mnemonic for determining the direction of magnetic forces or induced currents.
What is an Electromagnet?
An electromagnet is a magnet created by electric current flowing through a coil of wire.
What is a Generator?
A generator is a device that converts mechanical energy into electrical energy.
What is a Series Circuit?
A series circuit is a circuit where components are connected end-to-end, so the current flows through each component.
What is a Parallel Circuit?
A parallel circuit is a circuit where components are connected across common points, allowing current to divide among them.
Define Conductor.
A conductor is a material that allows electric charges to flow easily.
What is an Insulator?
An insulator is a material that resists the flow of electric charges.
